<template>
    <div class="icons">
        <swiper :options="swiperOption">
            <swiper-slide v-for="(page,index) of pages" :key="index">
                <div class="icon" v-for="item of page" :key="item.id ">
                    <div class="icons-img">
                        <img :src="item.imgUrl" class="icon-img-content"/>
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide >
        </swiper>
    </div>
</template>

<script>

export default {
  name: 'HomeIcons',
  props: {
      list : Array
   },
  data () {
      return {
          swiperOption: {
              autoplay : false
          }
      }
  },
  computed: {
      pages () {
        const pages= [];
        this.list.forEach((item , index) => {
            //向下取整
            const page= Math.floor(index/8);
            //假如不存在就进去初始化
            if(!pages[page]){
                pages[page]=[]
            }
            pages[page].push(item);
        });
        return pages;
      }
  }
}
</script>

<style lang="stylus" scoped> 
    @import '~styles/varibles.styl'
    @import '~styles/mixins.styl'
    .icons >>> .swiper-container
        height: 0
        padding-bottom: 50%
        // //滚动 hidden 超出隐藏  auto 自动
        // overflow: hidden
    .icons
        margin-top: .1rem    
        .icon
            height: 0
            position: relative
            overflow: hidden
            float: left
            width: 25%
            padding-bottom: 25%
            .icons-img
                position: absolute
                top: 0
                left: 0
                right: 0
                bottom: .44rem
                box-sizing: border-box
                padding: .1rem
                .icon-img-content
                    display: block
                    margin: 0 auto
                    height: 100%
            .icon-desc
                position: absolute
                left: 0
                right: 0
                bottom: 0
                height: .44rem
                line-height: .44rem
                color: $darkTextColor
                text-align: center  
                //字体过长，省略
                ellipsis()

</style>